Zip Code 21209 — Baltimore, MD

ZIP Code 21209 is associated with Baltimore, MD, in Baltimore County. The listed population estimate is 30,126; estimated density is 1,801.1 people per square mile. Among records with population estimates, it ranks #24 of 65 in Baltimore County and #84 of 470 in MD.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (39.372610, -76.668020)

Data MetricLocal Statistic
Postal / Zip Code21209
Primary CityBaltimore
State / ProvinceMD
CountyBaltimore
Total Population30,126
Population Density1,801.1 people/sq mi
TimezoneAmerica/New_York

How 21209 Compares

MetricZIP 21209Baltimore County recordsMD records
Population estimate30,1261,414,366 (sum)6,205,597 (sum)
Population Density1,801.1 /sq mi----
County population rank#24 of 65----
State population rank#84 of 470----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in MD

ZIP CodeCityDistancePopulation estimate
ZIP 21210Baltimore2.0 mi14,134
ZIP 21215Baltimore2.0 mi52,229
ZIP 21212Baltimore2.9 mi33,974
ZIP 21285Towson2.9 mi3
ZIP 21204Towson2.9 mi19,845

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →